#noithat_main .block_top {
    width: 100%;
}
#computer_main .block_top .top_left{
    width: 300px;
}

#computer_main .block_top .top_right{
    /*width: 48%;*/ 
}
#computer_main .block_middle .middle_left{
    width: auto;
}

#computer_main .block_middle .middle_right{
    width: 277px; 
}
#computer_main .block_bottom .bottom_left{
    width: 70%;
}

#computer_main .block_bottom .bottom_right{
    width: 30%; 
}



























